Hydraulic systems



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HYDRAULIC SYSTEMS Filed April 11, 1952 36 Sheets-Sheet. 5

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VlGGO BERTHELSEN Margh 12, 1957 v. BERTHELSEN 2,784,754

HYDRAULIC SYSTEMS Filed April 11, 1952 36 She'ets-Sheet 7 INVENTOR. 7 74 VlGGO BERTHELSEN March 12, 1957 v. BERTHELSEN 2,784,754

HYDRAULIC SYSTEMS Filed April 11.. 1952 SGSheets-Sheet 8 Ilmmru II I I00 i I g 1N VEN TOR.

VIGG O BERTHELSfEN March 12, 1957 v. BERTHELSEN 2,734,754

HYDRAULIC SYSTEMS? Filed April 11, 1952 36 Sheets-Sheet s LVVENTOR VIGGO BERTHELSEN March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 56 Sheets-Sheet 10 Filed Apiil 11. 1952 INVENTNOR. VIGGO BERTHEUSEN gig/A I ATT'YS March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 36 Sheets-Sheet 11 Filed April IL 1952 INVENTUR. VIGGO BERTHELSEN March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 56 Sheds-Sheet 12 Filed April 11. 1952 m m E V W.

VIGGO BERTHELSEN ATT'YS March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 36 Sheets-Sheet 13 Filed April 11. 1952 JNVENTOR.

. VIGGO BERTHELSEN ATT'YS March 12, 1957 v. BERTHELSEN 2,784,754

HYDRAULIC SYSTEMS Filed April 11, 1952' :se Sheets-Sheet 14 me I IN V EN TOR.

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HYDRAULIC SYSTEMS Filed April l l. 1952 56 sheets-Shem 16 March 12, 1957 v. BERTHELSEN 2,784,754

HYDRAULIC SYSTEMS Filed April 11. 1952 as Shets-Sheet 1v IIIIIIIIIIIIIIIIIIIIIIIIII n INVENTOR. i VIGGO BERTHELSEN ggyi;

March 12, 1957 Filed April 11. 1952 V. BERTHELSEN HYDRAULIC SYSTEMS 56 Sheets-Sheet l8 INVENTOR. v|eso BERTHELSEN March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 56 Sheets-Sheet 19 Filed April 11, 1952 INVENTOR. VIGGO BERTHEL SEN March 12, 1957 v. BERTHELSEN HYDRAULIC SYSTEMS 36 Sheets-Sheet 20 Filed April 11. 1952 INVENTOR. X IGGO BERTHELS EN Ar'r'ts 

